- Companies
- Civil engineering
- London
- Cni Services Limited
Cni Services Limited
- Company number
- 15207599
- Incorporated
- 12 Oct 20233 years trading
- Registered office
- S & B Accountants Limited, Unit F, 129 Mile End Road, London, E1 4BG
- Nature of business
- Construction of other civil engineering projects n.e.c.; Management consultancy activities other than financial management; Other building and industrial cleaning activities
Cni Services Limited is a 3-year-old private limited company registered in London, company number 15207599, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £13K (+92.3%) on the year before, to -£1,116.
- Current assets of £13K against £14K owed within a year: 0.9 times cover.
- 1 employee on average, down from 2 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£1,116 | £5,570 | £13K | £14K | 1 |
| 31 Oct 2024 | -£15K | £3,601 | £18K | 2 |
Where Cni Services Limited is registered
The registered office is in London (E1), in the Tower Hamlets local authority area, London. Show E1 4BG on a map.
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What happens if Cni Services Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 15207599
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 October 2023 (3 years ago)
- Registered office
- S & B Accountants Limited, Unit F, 129 Mile End Road, London, E1 4BG
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Management consultancy activities other than financial management (SIC 70229)
Other building and industrial cleaning activities (SIC 81229) - Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 2 October 2025
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- CNMS Construction Ltd2021
- CNR International Ltd2020
- Cobaltt Construction Ltd2019
- Cobomech UK Ltd2026
- Cohere Network and Engineering Solution Limited2022
- Community Energy Scheme Northampton Limited2026
- Complete Highways Ltd2023
- Concrete Printed Contractors Ltd2024
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Cni Services Limited's accounts due?
Cni Services Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Cni Services Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Cni Services Limited still trading?
Cni Services Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Cni Services Limited do?
Cni Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Management consultancy activities other than financial management (SIC 70229); Other building and industrial cleaning activities (SIC 81229).
How old is Cni Services Limited?
Cni Services Limited was incorporated on 12 October 2023, 3 years ago.
What is the penalty if Cni Services Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Cni Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.